i just want to make sure that im billing correct, if a patient comes in with a laceration to the leg and the doctor puts 2cm x 3cm do i add 2+3=5 and use code 12002 ? someone told me that you dont add them together you just use the first number, so i will only use 2cm.. is that true ? i understand the whole part about if they have more than one wound on the same anotomical site that you add them but what if it is just 1 laceration that is 2cm x 3cm ?? someone told me they are put 2x3 for length and width but you only code the length..